[rancid] Problems with clogin and Extreme XOS

[Tore Anderson]

  Hi.  I'm having some issues using RANCID (v2.3.2a3) with some switches
 running Extreme XOS (version 11.3.3.7).  My ~/.cloginrc looks as
 follows:

    add password * passwordhere
    add user * admin
    add passprompt * "password"
    add method * ssh
    add autoenable * 1

  First, a minor issue.  When I run clogin with the -c argument, it
 seems to insist on first running the command "term length 0", which
 isn't available in XOS.  The supplied command is afterwards run without
 any problems, even if the output would normally cause paging.  (The XOS
 command for disabling the pager for one session only is "disable
 clipaging").

  A bigger problem, is that the prompt changes when the configuration is
 unsaved - the string "* " is prepended.  RANCID is appararantly unable
 to cope with this:

    tore at echo :) clogin -c "show version" cs0-hmg9.int
    cs0-hmg9.int
    spawn ssh -c 3des -x -l admin cs0-hmg9.int
    Keyboard-interactive authentication
    Enter password for admin:
    ExtremeWare XOS
    Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
    Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
    ==============================================================================

    Press the <tab> or '?' key at any time for completions.
    Remember to save your configuration changes.

    * cs0.hmg9.no.linpro.net.1 #
    * cs0.hmg9.no.linpro.net.1 # couldn't compile regular expression pattern: quantifier operand invalid
        while executing
    "expect -nobrace -re {* cs0.hmg9.no.([^#>\r\n]+)?[#>](\([^)\r\n]+\))?} {} -re {[
    ]+} { exp_continue }"
        invoked from within
    "expect {
                -re $reprompt       {}
                -re "\[\n\r]+"      { exp_continue }
            }"
        (procedure "run_commands" line 23)
        invoked from within
    "run_commands $prompt $command"
        ("foreach" body line 145)
        invoked from within
    "foreach router [lrange $argv $i end] {
        set router [string tolower $router]
        send_user "$router\n"

        # Figure out the prompt.
        # autoenabl..."
        (file "/stat/home0/tore/local/bin/clogin" line 686)
    tore at echo :(

  It is also impossible to run a command which changes the config and
 thus the prompt:

    tore at echo :) clogin -c "configure vlan Adm name SomethingElse; sh ver" cs0-hmg9.int
    cs0-hmg9.int
    spawn ssh -c 3des -x -l admin cs0-hmg9.int
    Keyboard-interactive authentication
    Enter password for admin:
    ExtremeWare XOS
    Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
    Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
    ==============================================================================
    
    Press the <tab> or '?' key at any time for completions.
    Remember to save your configuration changes.
    
    cs0.hmg9.no.linpro.net.1 #  
    cs0.hmg9.no.linpro.net.1 # term length 0
                                    ^
    %% Invalid input detected at '^' marker.
    cs0.hmg9.no.linpro.net.2 #  configure vlan Adm name SomethingElse
    * cs0.hmg9.no.linpro.net.3 #
    Error: TIMEOUT reached
    tore at echo :) 

  Had I run "sh ver; sh ver" instead, it would have run both command and
 successfully logged out of the script.  Side note, shouldn't clogin
 return unsuccessfully when such a timeout error occur?

  I have also a few more low-end Extreme switches running ExtremeWare
 7.4.  Their prompt behaves just like in XOS, yet they work flawlessly
 with RANCID.  I don't really know expect, but reading the source code
 of clogin I see that there appears to be a variable named "platform"
 that gets the value "extreme" in some cases. I do not think that is
 correctly set on a switch running XOS.  However, there seems to be
 another problem - when I explicitly change the variable to be "extreme"
 in all cases, it still bombs out when the prompt indicating unsaved
 configuration is shown, and it also hangs after having run the (first)
 command:

    tore at echo :) clogin -c "sh ver; sh ver" cs1-hmg9.int
    cs1-hmg9.int
    sterm length 0pawn ssh -c 3des -x -l admin cs1-hmg9.int
    Keyboard-interactive authentication
    Enter password for admin:
    ExtremeWare XOS
    Copyright (C) 2000-2005 Extreme Networks. All rights reserved.
    Protected by US Patent Nos: 6,678,248; 6,104,700; 6,766,482; 6,618,388; 6,034,957; 6,859,438.
    ==============================================================================

    Press the <tab> or '?' key at any time for completions.
    Remember to save your configuration changes.

    cs1.hmg9.no.linpro.net.1 #
    cs1.hmg9.no.linpro.net.1 #  sh ver
    Switch    : 800143-00-04 0547G-00763 Rev 4.0 BootROM: 1.0.0.9    IMG: 11.3.3.7
    XGM-2xn-1 :

    Image   : ExtremeWare XOS version 11.3.3.7 v1133b7 by release-manager
              on Thu Feb 9 11:58:36 PST 2006
    BootROM : 1.0.0.9

    Error: TIMEOUT reached
    tore at echo :)

  (Note that it doesn't attempt to run "term length 0" any longer.)

  Any suggestions?

Kind regards
-- 
Tore Anderson